You missed Meteor Crater, Petrified Forest and Painted Desert in Northern Arizona east of Holbrook. All along I-40. Close by are Four Corners, where you can put your body in four states at the same time, and Canyon de Chelly.
You don't say how old your daughters are, but you can stand on the corner in Winslow Az, (Eagles fame) and see the wigwam motel of CARS fame in downtown Holbrook. If you ask they'll let you tour one of the wigwams.
In NM, White Sands Missle Range is awesome! Carlsbad Caverns, is good, too..stay at the CC RV Park...it's nicer than the one closest to the entrance. They have a pet facility at the cavern entrance so you don't have to leave them in the coach. If going to Roswell, be sure to see the zoo there..it's free and worth the trip. We stayed at Bottomless Lakes State Park...camping at the water's edge....have a safe trip....Dennis
